公开(公告)号：US20170231012A1

公开(公告)日：2017-08-10

申请号：US15502857

申请日：2016-02-23

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dan Keun SUNG ,  Han Seung JANG ,  Su Min KIM

IPC: H04W74/08 ,  H04W52/60 ,  H04W52/14

CPC classification number: H04W52/60 ,  H04J13/0062 ,  H04W52/146 ,  H04W52/16 ,  H04W74/0833

Abstract: User equipment (UE) that includes a processor and that executes a random access procedure with a base station (E-UTRAN Node B (eNodeB), also known as Evolved Node B) is provided. The UE can at least temporarily be embodied by the processor. The UE may comprise: a determination unit for determining a message size that can be transmitted and that corresponds to a physical random access channel according to an assigned communication method with the base station; a calculation unit for configuring a message to correspond to the message size and for respectively calculating a preamble index and at least one message index from the message; and an encoder for providing respective encoding of the preamble index and the at least one message index, and transmitting the same to the base station.

公开(公告)号：US20180317261A1

公开(公告)日：2018-11-01

申请号：US15738305

申请日：2016-12-12

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dan Keun SUNG ,  Hong Shik PARK ,  Han Seung JANG

IPC: H04W74/08

CPC classification number: H04W74/0833 ,  H04J13/0062 ,  H04J13/10 ,  H04W88/02 ,  H04W88/08

Abstract: Provided is a terminal, for example, user equipment (UE), including a processor and that performs a random access (RA) procedure with a base station, for example, for example, eNodeB, E-UTRAN Node B, or also known as Evolved Node B, and is at least temporarily embodied by the processor. The terminal may be at least temporarily embodied by the processor. The terminal may include a generator configured to generate a preamble sequence using a first sequence corresponding to a first root index based on a preamble index that is randomly selected, and a determiner configured to determine a second root index using the preamble index as an input value of a root index function. Further, the generator may be configured to generate a tag sequence using a second sequence corresponding to the second root index based on a tag index that is randomly selected.